=====================================================
BUG: KMSAN: uninit-value in __skb_checksum_validate_complete include/linux/skbuff.h:4128 [inline]
BUG: KMSAN: uninit-value in icmpv6_rcv+0x1502/0x2d00 net/ipv6/icmp.c:904
 __skb_checksum_validate_complete include/linux/skbuff.h:4128 [inline]
 icmpv6_rcv+0x1502/0x2d00 net/ipv6/icmp.c:904
 ip6_protocol_deliver_rcu+0xeb3/0x2ad0 net/ipv6/ip6_input.c:422
 ip6_input_finish net/ipv6/ip6_input.c:463 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ip6_input+0x130/0x390 net/ipv6/ip6_input.c:472
 ip6_mc_input+0xcab/0xef0 net/ipv6/ip6_input.c:566
 dst_input include/net/dst.h:460 [inline]
 ip6_rcv_finish+0x5fa/0x7f0 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297
 __netif_receive_skb_one_core net/core/dev.c:5462 [inline]
 __netif_receive_skb+0x1ec/0x630 net/core/dev.c:5576
 process_backlog+0x562/0xc30 net/core/dev.c:6452
 __napi_poll+0x14e/0xbc0 net/core/dev.c:7020
 napi_poll net/core/dev.c:7087 [inline]
 net_rx_action+0x824/0x1880 net/core/dev.c:7174
 __do_softirq+0x1fe/0x7eb kernel/softirq.c:558
 invoke_softirq+0xa4/0x130 kernel/softirq.c:432
 __irq_exit_rcu kernel/softirq.c:636 [inline]
 irq_exit_rcu+0x76/0x130 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0xa2/0xc0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 kmsan_get_metadata+0x0/0x120 mm/kmsan/shadow.c:128
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:30 [inline]
 __msan_metadata_ptr_for_load_8+0x20/0x30 mm/kmsan/instrumentation.c:66
 slab_free_freelist_hook+0x832/0x8e0 mm/slub.c:1782
 slab_free mm/slub.c:3530 [inline]
 kfree+0x2e8/0x9e0 mm/slub.c:4579
 tomoyo_path_perm+0xad4/0xc70 security/tomoyo/file.c:842
 tomoyo_inode_getattr+0x54/0x60 security/tomoyo/tomoyo.c:122
 security_inode_getattr+0x1bf/0x2a0 security/security.c:1334
 vfs_getattr fs/stat.c:157 [inline]
 vfs_statx+0x288/0x880 fs/stat.c:225
 vfs_fstatat fs/stat.c:243 [inline]
 vfs_stat include/linux/fs.h:3353 [inline]
 __do_sys_newstat fs/stat.c:385 [inline]
 __se_sys_newstat+0xcd/0x930 fs/stat.c:381
 __x64_sys_newstat+0x92/0xc0 fs/stat.c:381
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Uninit was stored to memory at:
 __skb_postpull_rcsum include/linux/skbuff.h:3467 [inline]
 skb_postpull_rcsum include/linux/skbuff.h:3487 [inline]
 ip6_protocol_deliver_rcu+0x1b78/0x2ad0 net/ipv6/ip6_input.c:399
 ip6_input_finish net/ipv6/ip6_input.c:463 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ip6_input+0x130/0x390 net/ipv6/ip6_input.c:472
 ip6_mc_input+0xcab/0xef0 net/ipv6/ip6_input.c:566
 dst_input include/net/dst.h:460 [inline]
 ip6_rcv_finish+0x5fa/0x7f0 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297
 __netif_receive_skb_one_core net/core/dev.c:5462 [inline]
 __netif_receive_skb+0x1ec/0x630 net/core/dev.c:5576
 process_backlog+0x562/0xc30 net/core/dev.c:6452
 __napi_poll+0x14e/0xbc0 net/core/dev.c:7020
 napi_poll net/core/dev.c:7087 [inline]
 net_rx_action+0x824/0x1880 net/core/dev.c:7174
 __do_softirq+0x1fe/0x7eb kernel/softirq.c:558

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:3251 [inline]
 __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0x545/0xf90 net/core/skbuff.c:426
 __netdev_alloc_skb+0x4e5/0x900 net/core/skbuff.c:494
 __netdev_alloc_skb_ip_align include/linux/skbuff.h:2934 [inline]
 netdev_alloc_skb_ip_align include/linux/skbuff.h:2944 [inline]
 br_ip6_multicast_alloc_query net/bridge/br_multicast.c:992 [inline]
 br_multicast_alloc_query net/bridge/br_multicast.c:1137 [inline]
 __br_multicast_send_query+0x12e6/0x66b0 net/bridge/br_multicast.c:1636
 br_multicast_send_query+0x9b7/0xb70 net/bridge/br_multicast.c:1725
 br_multicast_query_expired net/bridge/br_multicast.c:3811 [inline]
 br_ip6_multicast_query_expired+0x27f/0x310 net/bridge/br_multicast.c:3831
 call_timer_fn+0x81/0x550 kernel/time/timer.c:1421
 expire_timers+0x304/0x6e0 kernel/time/timer.c:1466
 __run_timers+0x694/0xa10 kernel/time/timer.c:1734
 run_timer_softirq+0x71/0xe0 kernel/time/timer.c:1747
 __do_softirq+0x1fe/0x7eb kernel/softirq.c:558

CPU: 1 PID: 26036 Comm: systemd-udevd Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================